MSA SUPREMATouch MCP 20, Руководство по эксплуатации

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114
Modules
GB
SUPREMATouch
11 Modules
The SUPREMATouch is a modular system, in the following all module functions are described in
details.
11.1 Measurement Value Input
The measurement values are acquired by the following units
MAI Module: Analogue Input Module
The MAI module can operate 8 sensors and process the input signals of those sensors. The power
supply outputs for the sensors and the signal inputs are protected against short-circuits and over-
loads in the 24 VDC power system.
The bridge current, zero point, and sensitivity can be adjusted with the display and the adjusting
elements on the MAI module or using software functions. (Adjustment is only required when a
sensor is replaced and with manual preadjustment).
Instead of sensors, switching contacts or smoke detectors can also be connected. The signal to
be evaluated now changes between ”closed circuit” state (approximately 4 mA) and ”alarm signal”
state (approximately 20 mA).
Functions:
• 1 slot for the MAR module (redundancy)
• Display and operating elements (bridge current, zero, sensitivity)
• Measurement of the signal v sensor supply (24 VDC)
• Connection terminals for the sensors are on the MAT module (power supply, signals)
• Status LEDs for supply voltage, AD conversion, adjusting procedures.
• Sensors are monitored by evaluation of the measurement signals
• Euro card with a 96-way connector
• Up to 8 MAI modules can be installed in one rack for the evaluation of 64 input signals.
MAR Module (Analogue Redundant Module)
This module is used for the redundant processing of input signals. It is plugged into the MAI
module. The sensor signals are digitized and forwarded in parallel with the MAI module. The
signals measured by the MAI30 will be compared to the signals measured by the MAR30.
The function here is identical to that of the MAI module.
• Used for the redundant processing of input signals
• Measurement values are digitized in parallel with the MAI module
• Supply and input signal take-over are provided by the MAI
• In redundant systems, a MAR module is required for every MAI module
11.2 Data Processing/MCP Module (Central Processing Module)
The data is processed by the Central Processing Module (MCP Module).
This module controls all system functions. The CPU communicates with the other system modules
over one or more CAN buses. The measurement values are acquired via the transmitter/detector
input module, and the results of the signal evaluation are output via the MGO module (relay driver
outputs) and the MDO module (Display).
Modules for Measurement Value Input
MAI Module
analogue INPUT Module
(signal proc digitisation for 8 inputs).
MAR Module
analogue REDUNDANT Module
(redundant signal input, digitisation).